diff options
25 files changed, 279 insertions, 39 deletions
diff --git a/drivers/clk/meson/Kconfig b/drivers/clk/meson/Kconfig index 29ffd14d267b..59a40a49f8e1 100644 --- a/drivers/clk/meson/Kconfig +++ b/drivers/clk/meson/Kconfig @@ -30,6 +30,10 @@ config COMMON_CLK_MESON_VID_PLL_DIV tristate select COMMON_CLK_MESON_REGMAP +config COMMON_CLK_MESON_VCLK + tristate + select COMMON_CLK_MESON_REGMAP + config COMMON_CLK_MESON_CLKC_UTILS tristate @@ -140,6 +144,7 @@ config COMMON_CLK_G12A select COMMON_CLK_MESON_EE_CLKC select COMMON_CLK_MESON_CPU_DYNDIV select COMMON_CLK_MESON_VID_PLL_DIV + select COMMON_CLK_MESON_VCLK select MFD_SYSCON help Support for the clock controller on Amlogic S905D2, S905X2 and S905Y2 diff --git a/drivers/clk/meson/Makefile b/drivers/clk/meson/Makefile index 9ee4b954c896..9ba43fe7a07a 100644 --- a/drivers/clk/meson/Makefile +++ b/drivers/clk/meson/Makefile @@ -12,6 +12,7 @@ obj-$(CONFIG_COMMON_CLK_MESON_PLL) += clk-pll.o obj-$(CONFIG_COMMON_CLK_MESON_REGMAP) += clk-regmap.o obj-$(CONFIG_COMMON_CLK_MESON_SCLK_DIV) += sclk-div.o obj-$(CONFIG_COMMON_CLK_MESON_VID_PLL_DIV) += vid-pll-div.o +obj-$(CONFIG_COMMON_CLK_MESON_VCLK) += vclk.o # Amlogic Clock controllers diff --git a/drivers/clk/meson/a1-peripherals.c b/drivers/clk/meson/a1-peripherals.c index e2a1f12f9175..621af1e6e4b2 100644 --- a/drivers/clk/meson/a1-peripherals.c +++ b/drivers/clk/meson/a1-peripherals.c @@ -2187,6 +2187,7 @@ static struct regmap_config a1_periphs_regmap_cfg = { .reg_bits = 32, .val_bits = 32, .reg_stride = 4, + .max_register = DMC_CLK_CTRL, }; static struct meson_clk_hw_data a1_periphs_clks = { diff --git a/drivers/clk/meson/a1-pll.c b/drivers/clk/meson/a1-pll.c index 4325e8a6a3ef..90b0aeeb049c 100644 --- a/drivers/clk/meson/a1-pll.c +++ b/drivers/clk/meson/a1-pll.c @@ -299,6 +299,7 @@ static struct regmap_config a1_pll_regmap_cfg = { .reg_bits = 32, .val_bits = 32, .reg_stride = 4, + .max_register = ANACTRL_HIFIPLL_STS, }; static struct meson_clk_hw_data a1_pll_clks = { diff --git a/drivers/clk/meson/axg-aoclk.c b/drivers/clk/meson/axg-aoclk.c index d80ab4728f7a..e4d0f46f47f5 100644 --- a/drivers/clk/meson/axg-aoclk.c +++ b/drivers/clk/meson/axg-aoclk.c @@ -340,4 +340,4 @@ static struct platform_driver axg_aoclkc_driver = { }; module_platform_driver(axg_aoclkc_driver); -MODULE_LICENSE("GPL v2"); +MODULE_LICENSE("GPL"); diff --git a/drivers/clk/meson/axg-audio.c b/drivers/clk/meson/axg-audio.c index ac3482960903..e03a5bf899c0 100644 --- a/drivers/clk/meson/axg-audio.c +++ b/drivers/clk/meson/axg-audio.c @@ -1877,4 +1877,4 @@ module_platform_driver(axg_audio_driver); MODULE_DESCRIPTION("Amlogic AXG/G12A/SM1 Audio Clock driver"); MODULE_AUTHOR("Jerome Brunet <jbrunet@baylibre.com>"); -MODULE_LICENSE("GPL v2"); +MODULE_LICENSE("GPL"); diff --git a/drivers/clk/meson/axg.c b/drivers/clk/meson/axg.c index 5f60f2bcca59..52d610110e44 100644 --- a/drivers/clk/meson/axg.c +++ b/drivers/clk/meson/axg.c @@ -2185,4 +2185,4 @@ static struct platform_driver axg_driver = { }; module_platform_driver(axg_driver); -MODULE_LICENSE("GPL v2"); +MODULE_LICENSE("GPL"); diff --git a/drivers/clk/meson/clk-cpu-dyndiv.c b/drivers/clk/meson/clk-cpu-dyndiv.c index 8778c149d26a..aa824b030cb8 100644 --- a/drivers/clk/meson/clk-cpu-dyndiv.c +++ b/drivers/clk/meson/clk-cpu-dyndiv.c @@ -69,4 +69,4 @@ EXPORT_SYMBOL_GPL(meson_clk_cpu_dyndiv_ops); MODULE_DESCRIPTION("Amlogic CPU Dynamic Clock divider"); MODULE_AUTHOR("Neil Armstrong <narmstrong@baylibre.com>"); -MODULE_LICENSE("GPL v2"); +MODULE_LICENSE("GPL"); diff --git a/drivers/clk/meson/clk-dualdiv.c b/drivers/clk/meson/clk-dualdiv.c index feae49a8f6dc..d46c02b51be5 100644 --- a/drivers/clk/meson/clk-dualdiv.c +++ b/drivers/clk/meson/clk-dualdiv.c @@ -140,4 +140,4 @@ EXPORT_SYMBOL_GPL(meson_clk_dualdiv_ro_ops); MODULE_DESCRIPTION("Amlogic dual divider driver"); MODULE_AUTHOR("Neil Armstrong <narmstrong@baylibre.com>"); MODULE_AUTHOR("Jerome Brunet <jbrunet@baylibre.com>"); -MODULE_LICENSE("GPL v2"); +MODULE_LICENSE("GPL"); diff --git a/drivers/clk/meson/clk-mpll.c b/drivers/clk/meson/clk-mpll.c index 20255e129b37..eae9b7dc5a6c 100644 --- a/drivers/clk/meson/clk-mpll.c +++ b/drivers/clk/meson/clk-mpll.c @@ -177,4 +177,4 @@ EXPORT_SYMBOL_GPL(meson_clk_mpll_ops); MODULE_DESCRIPTION("Amlogic MPLL driver"); MODULE_AUTHOR("Michael Turquette <mturquette@baylibre.com>"); -MODULE_LICENSE("GPL v2"); +MODULE_LICENSE("GPL"); diff --git a/drivers/clk/meson/clk-phase.c b/drivers/clk/meson/clk-phase.c index a6763439f7d2..ff3f0b1a3ed1 100644 --- a/drivers/clk/meson/clk-phase.c +++ b/drivers/clk/meson/clk-phase.c @@ -183,4 +183,4 @@ EXPORT_SYMBOL_GPL(meson_sclk_ws_inv_ops); MODULE_DESCRIPTION("Amlogic phase driver"); MODULE_AUTHOR("Jerome Brunet <jbrunet@baylibre.com>"); -MODULE_LICENSE("GPL v2"); +MODULE_LICENSE("GPL"); diff --git a/drivers/clk/meson/clk-pll.c b/drivers/clk/meson/clk-pll.c index 6fa7639a3050..07db8b5c3000 100644 --- a/drivers/clk/meson/clk-pll.c +++ b/drivers/clk/meson/clk-pll.c @@ -436,8 +436,8 @@ static int meson_clk_pll_set_rate(struct clk_hw *hw, unsigned long rate, ret = meson_clk_pll_enable(hw); if (ret) { - pr_warn("%s: pll did not lock, trying to restore old rate %lu\n", - __func__, old_rate); + pr_warn("%s: pll %s didn't lock, trying to set old rate %lu\n", + __func__, clk_hw_get_name(hw), old_rate); /* * FIXME: Do we really need/want this HACK ? * It looks unsafe. what happens if the clock gets into a @@ -486,4 +486,4 @@ EXPORT_SYMBOL_GPL(meson_clk_pll_ro_ops); MODULE_DESCRIPTION("Amlogic PLL driver"); MODULE_AUTHOR("Carlo Caione <carlo@endlessm.com>"); MODULE_AUTHOR("Jerome Brunet <jbrunet@baylibre.com>"); -MODULE_LICENSE("GPL v2"); +MODULE_LICENSE("GPL"); diff --git a/drivers/clk/meson/clk-regmap.c b/drivers/clk/meson/clk-regmap.c index 8ad8977cf1c2..ad116d24f700 100644 --- a/drivers/clk/meson/clk-regmap.c +++ b/drivers/clk/meson/clk-regmap.c @@ -183,4 +183,4 @@ EXPORT_SYMBOL_GPL(clk_regmap_mux_ro_ops); MODULE_DESCRIPTION("Amlogic regmap backed clock driver"); MODULE_AUTHOR("Jerome Brunet <jbrunet@baylibre.com>"); -MODULE_LICENSE("GPL v2"); +MODULE_LICENSE("GPL"); diff --git a/drivers/clk/meson/g12a-aoclk.c b/drivers/clk/meson/g12a-aoclk.c index c6b1d55cd7c8..58976ed8b92a 100644 --- a/drivers/clk/meson/g12a-aoclk.c +++ b/drivers/clk/meson/g12a-aoclk.c @@ -475,4 +475,4 @@ static struct platform_driver g12a_aoclkc_driver = { }; module_platform_driver(g12a_aoclkc_driver); -MODULE_LICENSE("GPL v2"); +MODULE_LICENSE("GPL"); diff --git a/drivers/clk/meson/g12a.c b/drivers/clk/meson/g12a.c index 90f4c6103014..56e66ecc306e 100644 --- a/drivers/clk/meson/g12a.c +++ b/drivers/clk/meson/g12a.c @@ -22,6 +22,7 @@ #include "clk-regmap.h" #include "clk-cpu-dyndiv.h" #include "vid-pll-div.h" +#include "vclk.h" #include "meson-eeclk.h" #include "g12a.h" @@ -3165,7 +3166,7 @@ static struct clk_regmap g12a_vclk2_sel = { .ops = &clk_regmap_mux_ops, .parent_hws = g12a_vclk_parent_hws, .num_parents = ARRAY_SIZE(g12a_vclk_parent_hws), - .flags = CLK_SET_RATE_NO_REPARENT | CLK_GET_RATE_NOCACHE, + .flags = CLK_SET_RATE_NO_REPARENT, }, }; @@ -3193,7 +3194,6 @@ static struct clk_regmap g12a_vclk2_input = { .ops = &clk_regmap_gate_ops, .parent_hws = (const struct clk_hw *[]) { &g12a_vclk2_sel.hw }, .num_parents = 1, - .flags = CLK_SET_RATE_PARENT | CLK_IGNORE_UNUSED, }, }; @@ -3215,19 +3215,32 @@ static struct clk_regmap g12a_vclk_div = { }; static struct clk_regmap g12a_vclk2_div = { - .data = &(struct clk_regmap_div_data){ - .offset = HHI_VIID_CLK_DIV, - .shift = 0, - .width = 8, + .data = &(struct meson_vclk_div_data){ + .div = { + .reg_off = HHI_VIID_CLK_DIV, + .shift = 0, + .width = 8, + }, + .enable = { + .reg_off = HHI_VIID_CLK_DIV, + .shift = 16, + .width = 1, + }, + .reset = { + .reg_off = HHI_VIID_CLK_DIV, + .shift = 17, + .width = 1, + }, + .flags = CLK_DIVIDER_ROUND_CLOSEST, }, .hw.init = &(struct clk_init_data){ .name = "vclk2_div", - .ops = &clk_regmap_divider_ops, + .ops = &meson_vclk_div_ops, .parent_hws = (const struct clk_hw *[]) { &g12a_vclk2_input.hw }, .num_parents = 1, - .flags = CLK_GET_RATE_NOCACHE, + .flags = CLK_SET_RATE_GATE, }, }; @@ -3246,16 +3259,24 @@ static struct clk_regmap g12a_vclk = { }; static struct clk_regmap g12a_vclk2 = { - .data = &(struct clk_regmap_gate_data){ - .offset = HHI_VIID_CLK_CNTL, - .bit_idx = 19, + .data = &(struct meson_vclk_gate_data){ + .enable = { + .reg_off = HHI_VIID_CLK_CNTL, + .shift = 19, + .width = 1, + }, + .reset = { + .reg_off = HHI_VIID_CLK_CNTL, + .shift = 15, + .width = 1, + }, }, .hw.init = &(struct clk_init_data) { .name = "vclk2", - .ops = &clk_regmap_gate_ops, + .ops = &meson_vclk_gate_ops, .parent_hws = (const struct clk_hw *[]) { &g12a_vclk2_div.hw }, .num_parents = 1, - .flags = CLK_SET_RATE_PARENT | CLK_IGNORE_UNUSED, + .flags = CLK_SET_RATE_PARENT, }, }; @@ -3339,7 +3360,7 @@ static struct clk_regmap g12a_vclk2_div1 = { .ops = &clk_regmap_gate_ops, .parent_hws = (const struct clk_hw *[]) { &g12a_vclk2.hw }, .num_parents = 1, - .flags = CLK_SET_RATE_PARENT | CLK_IGNORE_UNUSED, + .flags = CLK_SET_RATE_PARENT, }, }; @@ -3353,7 +3374,7 @@ static struct clk_regmap g12a_vclk2_div2_en = { .ops = &clk_regmap_gate_ops, .parent_hws = (const struct clk_hw *[]) { &g12a_vclk2.hw }, .num_parents = 1, - .flags = CLK_SET_RATE_PARENT | CLK_IGNORE_UNUSED, + .flags = CLK_SET_RATE_PARENT, }, }; @@ -3367,7 +3388,7 @@ static struct clk_regmap g12a_vclk2_div4_en = { .ops = &clk_regmap_gate_ops, .parent_hws = (const struct clk_hw *[]) { &g12a_vclk2.hw }, .num_parents = 1, - .flags = CLK_SET_RATE_PARENT | CLK_IGNORE_UNUSED, + .flags = CLK_SET_RATE_PARENT, }, }; @@ -3381,7 +3402,7 @@ static struct clk_regmap g12a_vclk2_div6_en = { .ops = &clk_regmap_gate_ops, .parent_hws = (const struct clk_hw *[]) { &g12a_vclk2.hw }, .num_parents = 1, - .flags = CLK_SET_RATE_PARENT | CLK_IGNORE_UNUSED, + .flags = CLK_SET_RATE_PARENT, }, }; @@ -3395,7 +3416,7 @@ static struct clk_regmap g12a_vclk2_div12_en = { .ops = &clk_regmap_gate_ops, .parent_hws = (const struct clk_hw *[]) { &g12a_vclk2.hw }, .num_parents = 1, - .flags = CLK_SET_RATE_PARENT | CLK_IGNORE_UNUSED, + .flags = CLK_SET_RATE_PARENT, }, }; @@ -3461,6 +3482,7 @@ static struct clk_fixed_factor g12a_vclk2_div2 = { &g12a_vclk2_div2_en.hw }, .num_parents = 1, + .flags = CLK_SET_RATE_PARENT, }, }; @@ -3474,6 +3496,7 @@ static struct clk_fixed_factor g12a_vclk2_div4 = { &g12a_vclk2_div4_en.hw }, .num_parents = 1, + .flags = CLK_SET_RATE_PARENT, }, }; @@ -3487,6 +3510,7 @@ static struct clk_fixed_factor g12a_vclk2_div6 = { &g12a_vclk2_div6_en.hw }, .num_parents = 1, + .flags = CLK_SET_RATE_PARENT, }, }; @@ -3500,6 +3524,7 @@ static struct clk_fixed_factor g12a_vclk2_div12 = { &g12a_vclk2_div12_en.hw }, .num_parents = 1, + .flags = CLK_SET_RATE_PARENT, }, }; @@ -3561,7 +3586,7 @@ static struct clk_regmap g12a_cts_encl_sel = { .ops = &clk_regmap_mux_ops, .parent_hws = g12a_cts_parent_hws, .num_parents = ARRAY_SIZE(g12a_cts_parent_hws), - .flags = CLK_SET_RATE_NO_REPARENT | CLK_GET_RATE_NOCACHE, + .flags = CLK_SET_RATE_PARENT | CLK_SET_RATE_NO_REPARENT, }, }; @@ -3717,15 +3742,26 @@ static struct clk_regmap g12a_mipi_dsi_pxclk_sel = { .ops = &clk_regmap_mux_ops, .parent_hws = g12a_mipi_dsi_pxclk_parent_hws, .num_parents = ARRAY_SIZE(g12a_mipi_dsi_pxclk_parent_hws), - .flags = CLK_SET_RATE_NO_REPARENT, + .flags = CLK_SET_RATE_NO_REPARENT | CLK_SET_RATE_PARENT, }, }; +/* + * FIXME: Force as bypass by forcing a single /1 table entry, and doensn't on boot value + * when setting a clock whith this node in the clock path, but doesn't garantee the divider + * is at /1 at boot until a rate is set. + */ +static const struct clk_div_table g12a_mipi_dsi_pxclk_div_table[] = { + { .val = 0, .div = 1 }, + { /* sentinel */ }, +}; + static struct clk_regmap g12a_mipi_dsi_pxclk_div = { .data = &(struct clk_regmap_div_data){ .offset = HHI_MIPIDSI_PHY_CLK_CNTL, .shift = 0, .width = 7, + .table = g12a_mipi_dsi_pxclk_div_table, }, .hw.init = &(struct clk_init_data){ .name = "mipi_dsi_pxclk_div", @@ -5578,4 +5614,4 @@ static struct platform_driver g12a_driver = { }; module_platform_driver(g12a_driver); -MODULE_LICENSE("GPL v2"); +MODULE_LICENSE("GPL"); diff --git a/drivers/clk/meson/gxbb-aoclk.c b/drivers/clk/meson/gxbb-aoclk.c index 4aec1740ac34..dbda563729db 100644 --- a/drivers/clk/meson/gxbb-aoclk.c +++ b/drivers/clk/meson/gxbb-aoclk.c @@ -300,4 +300,4 @@ static struct platform_driver gxbb_aoclkc_driver = { }, }; module_platform_driver(gxbb_aoclkc_driver); -MODULE_LICENSE("GPL v2"); +MODULE_LICENSE("GPL"); diff --git a/drivers/clk/meson/gxbb.c b/drivers/clk/meson/gxbb.c index 1b1279d94781..29507b8c4304 100644 --- a/drivers/clk/meson/gxbb.c +++ b/drivers/clk/meson/gxbb.c @@ -3569,4 +3569,4 @@ static struct platform_driver gxbb_driver = { }; module_platform_driver(gxbb_driver); -MODULE_LICENSE("GPL v2"); +MODULE_LICENSE("GPL"); diff --git a/drivers/clk/meson/meson-aoclk.c b/drivers/clk/meson/meson-aoclk.c index bf466fef263c..b8a9d59e6726 100644 --- a/drivers/clk/meson/meson-aoclk.c +++ b/drivers/clk/meson/meson-aoclk.c @@ -89,4 +89,4 @@ int meson_aoclkc_probe(struct platform_device *pdev) return devm_of_clk_add_hw_provider(dev, meson_clk_hw_get, (void *)&data->hw_clks); } EXPORT_SYMBOL_GPL(meson_aoclkc_probe); -MODULE_LICENSE("GPL v2"); +MODULE_LICENSE("GPL"); diff --git a/drivers/clk/meson/meson-eeclk.c b/drivers/clk/meson/meson-eeclk.c index 845ca8bfa346..3cbc7f233bba 100644 --- a/drivers/clk/meson/meson-eeclk.c +++ b/drivers/clk/meson/meson-eeclk.c @@ -58,4 +58,4 @@ int meson_eeclkc_probe(struct platform_device *pdev) return devm_of_clk_add_hw_provider(dev, meson_clk_hw_get, (void *)&data->hw_clks); } EXPORT_SYMBOL_GPL(meson_eeclkc_probe); -MODULE_LICENSE("GPL v2"); +MODULE_LICENSE("GPL"); diff --git a/drivers/clk/meson/s4-peripherals.c b/drivers/clk/meson/s4-peripherals.c index 6c35de3d536f..5e17ca50ab09 100644 --- a/drivers/clk/meson/s4-peripherals.c +++ b/drivers/clk/meson/s4-peripherals.c @@ -3751,6 +3751,7 @@ static struct regmap_config clkc_regmap_config = { .reg_bits = 32, .val_bits = 32, .reg_stride = 4, + .max_register = CLKCTRL_DEMOD_CLK_CTRL, }; static struct meson_clk_hw_data s4_periphs_clks = { @@ -3799,6 +3800,7 @@ static const struct of_device_id clkc_match_table[] = { }, {} }; +MODULE_DEVICE_TABLE(of, clkc_match_table); static struct platform_driver s4_driver = { .probe = meson_s4_periphs_probe, diff --git a/drivers/clk/meson/s4-pll.c b/drivers/clk/meson/s4-pll.c index 8dfaeccaadc2..d2650d96400c 100644 --- a/drivers/clk/meson/s4-pll.c +++ b/drivers/clk/meson/s4-pll.c @@ -798,6 +798,7 @@ static struct regmap_config clkc_regmap_config = { .reg_bits = 32, .val_bits = 32, .reg_stride = 4, + .max_register = ANACTRL_HDMIPLL_CTRL0, }; static struct meson_clk_hw_data s4_pll_clks = { @@ -853,6 +854,7 @@ static const struct of_device_id clkc_match_table[] = { }, {} }; +MODULE_DEVICE_TABLE(of, clkc_match_table); static struct platform_driver s4_driver = { .probe = meson_s4_pll_probe, diff --git a/drivers/clk/meson/sclk-div.c b/drivers/clk/meson/sclk-div.c index d12c45c4c261..987f5b06587c 100644 --- a/drivers/clk/meson/sclk-div.c +++ b/drivers/clk/meson/sclk-div.c @@ -251,4 +251,4 @@ EXPORT_SYMBOL_GPL(meson_sclk_div_ops); MODULE_DESCRIPTION("Amlogic Sample divider driver"); MODULE_AUTHOR("Jerome Brunet <jbrunet@baylibre.com>"); -MODULE_LICENSE("GPL v2"); +MODULE_LICENSE("GPL"); diff --git a/drivers/clk/meson/vclk.c b/drivers/clk/meson/vclk.c new file mode 100644 index 000000000000..e886df55d6e3 --- /dev/null +++ b/drivers/clk/meson/vclk.c @@ -0,0 +1,141 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Copyright (c) 2024 Neil Armstrong <neil.armstrong@linaro.org> + */ + +#include <linux/module.h> +#include "vclk.h" + +/* The VCLK gate has a supplementary reset bit to pulse after ungating */ + +static inline struct meson_vclk_gate_data * +clk_get_meson_vclk_gate_data(struct clk_regmap *clk) +{ + return (struct meson_vclk_gate_data *)clk->data; +} + +static int meson_vclk_gate_enable(struct clk_hw *hw) +{ + struct clk_regmap *clk = to_clk_regmap(hw); + struct meson_vclk_gate_data *vclk = clk_get_meson_vclk_gate_data(clk); + + meson_parm_write(clk->map, &vclk->enable, 1); + + /* Do a reset pulse */ + meson_parm_write(clk->map, &vclk->reset, 1); + meson_parm_write(clk->map, &vclk->reset, 0); + + return 0; +} + +static void meson_vclk_gate_disable(struct clk_hw *hw) +{ + struct clk_regmap *clk = to_clk_regmap(hw); + struct meson_vclk_gate_data *vclk = clk_get_meson_vclk_gate_data(clk); + + meson_parm_write(clk->map, &vclk->enable, 0); +} + +static int meson_vclk_gate_is_enabled(struct clk_hw *hw) +{ + struct clk_regmap *clk = to_clk_regmap(hw); + struct meson_vclk_gate_data *vclk = clk_get_meson_vclk_gate_data(clk); + + return meson_parm_read(clk->map, &vclk->enable); +} + +const struct clk_ops meson_vclk_gate_ops = { + .enable = meson_vclk_gate_enable, + .disable = meson_vclk_gate_disable, + .is_enabled = meson_vclk_gate_is_enabled, +}; +EXPORT_SYMBOL_GPL(meson_vclk_gate_ops); + +/* The VCLK Divider has supplementary reset & enable bits */ + +static inline struct meson_vclk_div_data * +clk_get_meson_vclk_div_data(struct clk_regmap *clk) +{ + return (struct meson_vclk_div_data *)clk->data; +} + +static unsigned long meson_vclk_div_recalc_rate(struct clk_hw *hw, + unsigned long prate) +{ + struct clk_regmap *clk = to_clk_regmap(hw); + struct meson_vclk_div_data *vclk = clk_get_meson_vclk_div_data(clk); + + return divider_recalc_rate(hw, prate, meson_parm_read(clk->map, &vclk->div), + vclk->table, vclk->flags, vclk->div.width); +} + +static int meson_vclk_div_determine_rate(struct clk_hw *hw, + struct clk_rate_request *req) +{ + struct clk_regmap *clk = to_clk_regmap(hw); + struct meson_vclk_div_data *vclk = clk_get_meson_vclk_div_data(clk); + + return divider_determine_rate(hw, req, vclk->table, vclk->div.width, + vclk->flags); +} + +static int meson_vclk_div_set_rate(struct clk_hw *hw, unsigned long rate, + unsigned long parent_rate) +{ + struct clk_regmap *clk = to_clk_regmap(hw); + struct meson_vclk_div_data *vclk = clk_get_meson_vclk_div_data(clk); + int ret; + + ret = divider_get_val(rate, parent_rate, vclk->table, vclk->div.width, + vclk->flags); + if (ret < 0) + return ret; + + meson_parm_write(clk->map, &vclk->div, ret); + + return 0; +}; + +static int meson_vclk_div_enable(struct clk_hw *hw) +{ + struct clk_regmap *clk = to_clk_regmap(hw); + struct meson_vclk_div_data *vclk = clk_get_meson_vclk_div_data(clk); + + /* Unreset the divider when ungating */ + meson_parm_write(clk->map, &vclk->reset, 0); + meson_parm_write(clk->map, &vclk->enable, 1); + + return 0; +} + +static void meson_vclk_div_disable(struct clk_hw *hw) +{ + struct clk_regmap *clk = to_clk_regmap(hw); + struct meson_vclk_div_data *vclk = clk_get_meson_vclk_div_data(clk); + + /* Reset the divider when gating */ + meson_parm_write(clk->map, &vclk->enable, 0); + meson_parm_write(clk->map, &vclk->reset, 1); +} + +static int meson_vclk_div_is_enabled(struct clk_hw *hw) +{ + struct clk_regmap *clk = to_clk_regmap(hw); + struct meson_vclk_div_data *vclk = clk_get_meson_vclk_div_data(clk); + + return meson_parm_read(clk->map, &vclk->enable); +} + +const struct clk_ops meson_vclk_div_ops = { + .recalc_rate = meson_vclk_div_recalc_rate, + .determine_rate = meson_vclk_div_determine_rate, + .set_rate = meson_vclk_div_set_rate, + .enable = meson_vclk_div_enable, + .disable = meson_vclk_div_disable, + .is_enabled = meson_vclk_div_is_enabled, +}; +EXPORT_SYMBOL_GPL(meson_vclk_div_ops); + +MODULE_DESCRIPTION("Amlogic vclk clock driver"); +MODULE_AUTHOR("Neil Armstrong <neil.armstrong@linaro.org>"); +MODULE_LICENSE("GPL"); diff --git a/drivers/clk/meson/vclk.h b/drivers/clk/meson/vclk.h new file mode 100644 index 000000000000..20b0b181db09 --- /dev/null +++ b/drivers/clk/meson/vclk.h @@ -0,0 +1,51 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * Copyright (c) 2024 Neil Armstrong <neil.armstrong@linaro.org> + */ + +#ifndef __VCLK_H +#define __VCLK_H + +#include "clk-regmap.h" +#include "parm.h" + +/** + * struct meson_vclk_gate_data - vclk_gate regmap backed specific data + * + * @enable: vclk enable field + * @reset: vclk reset field + * @flags: hardware-specific flags + * + * Flags: + * Same as clk_gate except CLK_GATE_HIWORD_MASK which is ignored + */ +struct meson_vclk_gate_data { + struct parm enable; + struct parm reset; + u8 flags; +}; + +extern const struct clk_ops meson_vclk_gate_ops; + +/** + * struct meson_vclk_div_data - vclk_div regmap back specific data + * + * @div: divider field + * @enable: vclk divider enable field + * @reset: vclk divider reset field + * @table: array of value/divider pairs, last entry should have div = 0 + * + * Flags: + * Same as clk_divider except CLK_DIVIDER_HIWORD_MASK which is ignored + */ +struct meson_vclk_div_data { + struct parm div; + struct parm enable; + struct parm reset; + const struct clk_div_table *table; + u8 flags; +}; + +extern const struct clk_ops meson_vclk_div_ops; + +#endif /* __VCLK_H */ diff --git a/drivers/clk/meson/vid-pll-div.c b/drivers/clk/meson/vid-pll-div.c index daff235bc763..ee129f86794d 100644 --- a/drivers/clk/meson/vid-pll-div.c +++ b/drivers/clk/meson/vid-pll-div.c @@ -96,4 +96,4 @@ EXPORT_SYMBOL_GPL(meson_vid_pll_div_ro_ops); MODULE_DESCRIPTION("Amlogic video pll divider driver"); MODULE_AUTHOR("Neil Armstrong <narmstrong@baylibre.com>"); -MODULE_LICENSE("GPL v2"); +MODULE_LICENSE("GPL"); |